In addition to the destruction of former IRS official Lois Lerner's computer hard drive, the Federal Election Commission recycled the hard drive of one of her former employees, adding to the list of emails that have gone missing in relation to the IRS's targeting of conservative groups.

In a letter to the FEC, House Oversight and Government Reform Committee Chairman Darrell Issa and committee member Jim Jordan blasted the destruction of FEC attorney April Sands' hard drive, saying it has hindered the investigation.

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"The FEC's failure to retain Ms. Sands' hard drive prevented the FEC Office of Inspector General from fully pursuing appropriate criminal sanctions for Ms. Sands' admitted violation of federal law," the letter said. "Like the IRS's destruction of Lois Lerner's hard drive, the FEC’s recycling of Ms. Sands' hard drive may have also destroyed material responsive to Freedom of Information Act and congressional oversight requests."

Sands resigned from the FEC in April after admitting to violating the Hatch Act, which bans executive branch employees from engaging in partisan political activities on federal time or at federal facilities.

She also had a history of tweeting criticism of Republicans while praising President Barack Obama, the Daily Caller reported.

"I just don't understand how anyone but straight white men can vote Republican. What kind of delusional rhetorical [sic] does one use?" Sands, who is black, wrote in a tweet on June 4, 2012.

A tweet by Sands on May 1, 2012, said, "Dear every single Republican ever, When will U learn that Barack Hussein Obama is simply smarter than U? Stand down, Signed #Obama2012 #p2."

And in a message on Aug. 25, 2012, Sands called Republicans her "enemy."

It is unclear whether Sands and Lerner communicated after Lerner's move to the IRS, the Daily Caller noted, but the Oversight Committee letter points out that Lerner was known to have communicated with other FEC employees after her move.

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